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7,59 x (54+52+1)
=7,59 x 107
=812,13
Hok tốt!!
![](https://rs.olm.vn/images/avt/0.png?1311)
7,59 x 54 + 7,59 x 52 + 7,59
= 7,59 x 54 + 7,59 x 52 + 7,59 x 1
= 7,59 x ( 54 + 52 + 1 )
= 7,59 x 110
còn lại tự tính nha !!!
7,59 x 54 + 7,59 x 52 + 7,59
=7,59 x 54 + 7,59 x 52 + 7,59 x 1
= 7,59 x (54+52+1)
= 7,59 x 107
=812,13
![](https://rs.olm.vn/images/avt/0.png?1311)
3,75 x 4,1 + 2,43 x 4,1 = (3,57 + 2,43) x 4,1 = 6 x 4,1 = 24,6
![](https://rs.olm.vn/images/avt/0.png?1311)
`3,57 : 0,25 + 2,43 xx 4 + 4 `
= `3,57 xx 4 + 2,43 xx 4 + 4 xx1`
= `4 xx(3,57 + 2,43 + 1)`
= `4 xx 7`
= `28`
`652,45xx 27,8 - 27,8 xx 552,45`
= `27,8 xx ( 652,45 - 552,45)`
= `27,8 xx 100`
= `2780`
![](https://rs.olm.vn/images/avt/0.png?1311)
57, 34 : ( x + 4,84) = 6,1
x + 4,84 = 57,34 : 6,1
x + 4,84 =9,4
x = 9,4 - 4,84
x = 4,56
57,34 : ( x + 4,84 ) = 6,1
=> x + 4,84 = 57,34 : 6,1
=> x + 4,84 = 9,4
=> x = 9,4 - 4,84
=> x = 4,56
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(=4,1\times\left(3,57+2,43\right)+5,4=4,1\times6+5,4=24,6+5,4=30\)
\(x\) \(\times\) 7,59 - \(x\) \(\times\) 2,43 = 123,16 - \(x\) \(\times\) 4,84
\(x\) \(\times\)( 7,59 - 2,43) = 123,16 - \(x\) \(\times\) 4,84
\(x\) \(\times\) 5,16 = 123,16 - \(x\) \(\times\) 4,84
\(x\) \(\times\) 5,16 + \(x\) \(\times\) 4,84 = 123,16
\(x\) \(\times\)(5,16 + 4,84) = 123,16
\(x\) \(\times\) 10 = 123,16
\(x\) = 123,16 : 10
\(x\) = 12,316